气候变化领域集成服务门户(CCPortal): Substantial convection and precipitation enhancements by ultrafine aerosol particles

CCPortal

DOI	10.1126/science.aan8461
	Substantial convection and precipitation enhancements by ultrafine aerosol particles
	Fan J.; Rosenfeld D.; Zhang Y.; Giangrande S.E.; Li Z.; Machado L.A.T.; Martin S.T.; Yang Y.; Wang J.; Artaxo P.; Barbosa H.M.J.; Braga R.C.; Comstock J.M.; Feng Z.; Gao W.; Gomes H.B.; Mei F.; Pöhlker C.; Pöhlker M.L.; Pöschl U.; De Souza R.A.F.
发表日期	2018
ISSN	0036-8075
起始页码	411
结束页码	418
卷号	359 期号:6374
英文摘要	Aerosol-cloud interactions remain the largest uncertainty in climate projections. Ultrafine aerosol particles smaller than 50 nanometers (UAP<50) can be abundant in the troposphere but are conventionally considered too small to affect cloud formation. Observational evidence and numerical simulations of deep convective clouds (DCCs) over the Amazon show that DCCs forming in a low-aerosol environment can develop very large vapor supersaturation because fast droplet coalescence reduces integrated droplet surface area and subsequent condensation. UAP<50 from pollution plumes that are ingested into such clouds can be activated to form additional cloud droplets on which excess supersaturation condenses and forms additional cloud water and latent heating, thus intensifying convective strength. This mechanism suggests a strong anthropogenic invigoration of DCCs in previously pristine regions of the world. © 2017 The Authors.
英文关键词	rain; aerosol; cloud droplet; cloud water; coalescence; condensation; convection; convective cloud; heating; particle size; precipitation (climatology); supersaturation; aerosol; air pollution; Article; atmospheric radiation measurement; cloud condensation nuclei; convective available potential energy; convective inhibition; deep convection cloud; droplet freezing; environmental parameters; freezing; heating; humidity; mathematical analysis; parameters; plume; polymerization; precipitation; priority journal; radiation measurement; sensitivity analysis; simulation; supersaturation; thermodynamics; ultrafine aerosol particle; vapor; Amazon River
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243657
作者单位	Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA 99352, United States; Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem, 91904, Israel; Department of Atmospheric and Oceanic Science, ESSIC, University of Maryland, College Park, MD 20742, United States; Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, NY, United States; State Laboratory of Earth Surface Process and Resource Ecology, GCESS, Beijing Normal University, Beijing, China; Centro de Previsão de Tempo e Estudos Climáticos, Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista, Brazil; School of Engineering and Applied Sciences, Department of Earth and Planetary Sciences, Harvard University, Boston, MA, United States; Beijing Municipal Weather Modification Office, Beijing, 100089, China; Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, São Paulo, 05508-090, Brazil; Department of Physics, University of Maryland Ba...
推荐引用方式 GB/T 7714	Fan J.,Rosenfeld D.,Zhang Y.,et al. Substantial convection and precipitation enhancements by ultrafine aerosol particles[J],2018,359(6374).
APA	Fan J..,Rosenfeld D..,Zhang Y..,Giangrande S.E..,Li Z..,...&De Souza R.A.F..(2018).Substantial convection and precipitation enhancements by ultrafine aerosol particles.Science,359(6374).
MLA	Fan J.,et al."Substantial convection and precipitation enhancements by ultrafine aerosol particles".Science 359.6374(2018).